Mobile Station Handover Signal Measurement Using Default Parameters
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Solution Overview
Problem
In wireless communication systems, particularly during handover in GPRS networks, mobile stations (MS) experience delays because they cannot perform signal strength measurements without receiving necessary parameters from the network, leading to inefficiencies in radio link maintenance.
Innovation Solution
Assigning default values to parameters like SERVING_BAND_REPORTING, REP_PRIORITY, REPORTING_RATE, and INVALID_BSIC_REPORTING allows MS to perform measurements in new cells without waiting for parameter reception, ensuring continuous communication and reducing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the mobile station waits for network parameters to be provided before performing measurements, then measurement accuracy is improved, but handover time is increased
Solution Approach 1:
The patent applies preliminary action by having the mobile station perform measurements using default parameters immediately after handover, before the network provides the actual measurement parameters. This preliminary measurement capability eliminates the waiting period and ensures continuous operation during the parameter transmission phase.
Solution Approach 2:
The patent uses default parameters as an intermediary mechanism that enables the mobile station to function during the transition period. These default parameters act as a temporary substitute until the network provides the actual parameters, bridging the gap between handover completion and parameter reception.
2Reliability
If the mobile station uses default values for parameters, then communication continuity is improved, but measurement accuracy may be compromised
Solution Approach 1:
The mobile station performs measurements using default parameters as a preliminary action immediately after handover. This ensures communication continuity is maintained without interruption, and the system can operate reliably during the parameter transmission phase before switching to network-provided parameters for enhanced accuracy.
Solution Approach 2:
The patent implements a dynamic parameter selection mechanism where the mobile station transitions from using default parameters to using network-provided parameters once they become available. This dynamic switching allows the system to adapt between reliability (using defaults) and accuracy (using network parameters) based on the operational context.
3Measurement precision
If the network provides parameters immediately after handover, then measurement accuracy is improved, but network complexity increases
Solution Approach 1:
The mobile station performs self-service by autonomously selecting and applying default parameters when network parameters are not immediately available. This self-service capability eliminates the need for complex network coordination during the parameter transmission phase, reducing network complexity while maintaining measurement functionality.
Solution Approach 2:
The patent employs parameter changes by switching from default parameters to network-provided parameters based on availability. This dynamic parameter change mechanism allows the system to adapt to different network conditions without requiring complex network management, as the mobile station independently manages the parameter transition.
Data Source
AI summary
A method of communicating with a network in a wireless communication system is disclosed. More specifically, the method includes performing handover by a mobile station (MS) from a first cell to a second cell, and measuring signal strengths of neighboring cells by the MS after moving to the second cell using the at least one default value if at least one parameter is not provided from the second cell.